Method constructor

ch6-ring-buffer/ring-buffer.js:2–5

(meta/*: Uint32Array[3]*/, buffer /*: Uint8Array */)

class RingBuffer {
  constructor(meta/*: Uint32Array[3]*/, buffer /*: Uint8Array */) {
    this.meta = meta;
    this.buffer = buffer;
  }

  get head() {
    return this.meta[0];